19623396395 has 16 divisors (see below), whose sum is σ = 24941831040. Its totient is φ = 14770182144.

The previous prime is 19623396383. The next prime is 19623396409. The reversal of 19623396395 is 59369332691.

It is a cyclic number.

It is not a de Polignac number, because 19623396395 - 2²⁰ = 19622347819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19623396395.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218771 + ... + 295139.

It is an arithmetic number, because the mean of its divisors is an integer number (1558864440).

Almost surely, 2^19623396395 is an apocalyptic number.

19623396395 is a deficient number, since it is larger than the sum of its proper divisors (5318434645).

19623396395 is a wasteful number, since it uses less digits than its factorization.

19623396395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79414.

The product of its digits is 7085880, while the sum is 56.

The spelling of 19623396395 in words is "nineteen billion, six hundred twenty-three million, three hundred ninety-six thousand, three hundred ninety-five".